(laughter) and my guest, author jim holt, has written a book on why the world exists. well, when two planets love each other very much they share a special hug. (laughter) the university of tennessee frat members were caught butt-chugging wine. (laughter) that sounds like some drunk ass (bleep). (laughter) this is "the colbert report." (cheers and applause) captioning sponsored by comedy central ( theme song playing ) ( cheers and applause )